The PREQ-73 has a sound character that is warm, punchy, sweet and musical. These classic characteristics have been heard on countless recordings through the years and it is a versatile sound that works very well on most sound sources and in most genres. The PREQ-73 is a one-channel vintage style microphone-, line- and instrument preamplifier with a two band shelving equalizer offering a smooth and effective sound shaping.

A two band LF (+/-15 dB) and HF (+/-20 dB) shelving equalizer with two selectable frequencies for each band.

A simple but effective 3-step LED output level meter.

Output level control for fine gain adjustments and to make it possible to drive the input gain and equalizer stages harder.

Combo XLR/TRS input jacks and separate output XLR and TRS jacks for flexible connections. Will drive almost any load.

Insert jack (unbalanced, low level) for inserting effect units in the signal path. It can be located before or after the eq section.

Tantalum capacitors in the signal path.

The circuit board is prepared for the Carnhill mic and line input transformers.

Jumper selectable 600 Ohms output termination.

External high power power supply to avoid interaction with the audio circuits and transformers.

A solid build quality that will last many years of normal use.

The signal path uses only discrete components like resistors, capacitors and transistors. The line and microphone input and the line output are transformer balanced, using three different transformers, each one optimized for its purpose. The fully floating output can drive a level of at least +26 dBu into a load as low as 600 Ohms. This is the way audio components were built before integrated circuits became available. The subjective sound quality delivered by vintage equipment is often prefered over the one delivered by modern units, a situation that is even more obvious now when music is recorded with clean sounding digital audio equipment.

What started as a simple string and pedal sales catalog has grown exponentially over the past thirty years. The early days were a time where catalogs didn't have much of a presence in the industry, but what began as a college dorm room operation grew rapidly. In 1986 we moved to a full product offering and 64-page catalog, which over the years has grown to 162 pages. Join the AMS family and get your free catalog now!